MIDDLETOWN >> A Wesleyan University student is suing the Psi Upsilon fraternity’s chapter at the college and the fraternity’s international organization for $10 million, alleging she was raped in full view of several witnesses at a party last May.

The complaint, filed Tuesday, names the alleged rapist, two former fraternity officers, the Xi Chapter and the entire Psi Upsilon men’s society, accusing the fraternity of providing inadequate security for its social guests and complicity that led to the victim’s alleged rape.

“This pledge event had been promoted, among Xi members exclusively, as an opportunity to engage in sexual encounters with female guests,” wrote O’Keefe. “Many of the pledges and attendees were underage and extremely intoxicated. The pledges began removing all of their clothes, and the event got wildly out of control as attendees knocked over furniture, spilled alcohol throughout the area, and began dancing with the naked pledges.”

O’Keefe wrote that the plaintiff did not want to stick around, so she put on her coat and started to leave, texting a friend to meet her outside. One man “picked her up from behind, put her on a tabletop, and started grinding with her.” She broke free from him, but one of the defendants, “naked and standing nearby,” took hold of her, “threw her over the leg of a couch, pulled down her leggings, and raped her in the presence of numerous others.”

This all happened in a common area of the fraternity house, and that the plaintiff pleaded with the alleged assailant to stop, O’Keefe said.

The complaint does not indicate whether the alleged assailant was a guest, fraternity member or pledge, but names him as “an agent of Psi Upsilon Fraternity and Xi Chapter.”

The plaintiff met the friend she had texted, they called Wesleyan Public Safety and went to Middlesex Hospital, where a rape kit confirmed the likelihood of sexual assault, said O’Keefe. She later took a leave of absence from the university.

The university expelled the alleged rapist following a disciplinary hearing. University spokeswoman Kate Carlisle said, “the fraternity involved was sanctioned” as well.

The complaint condemns the fraternity for not having security or “sober, responsible management.”

Psi Upsilon’s housing contract, which allows the international fraternity to own and operate its house on-campus, mandates that the fraternity designate an officer to manage social events and ensure the safety of its guests, said O’Keefe.

“Psi Upsilon Fraternity takes all reports of risk management violations, especially those with regard to sexual assault, very seriously,” Thomas Fox, the executive director for the fraternity’s international office, said in a prepared statement. “We are currently investigating the incident and gathering further information.”

“All members also complete GreekLifeEDU, an online educational program which educates students with regard to alcohol consumption, hazing, and sexual assault,” said Fox.

Chapter officers did not return requests for comment Wednesday.

University President Michael Roth said, “Sexual violence will never be tolerated on our campus” in a prepared statement. He added that the party itself had violated university regulations.

“At Wesleyan, there are three residential fraternities. Their buildings, housing a total of 67 students, are owned by their respective organizations,” said Roth. “While these fraternities have had some autonomy, all have seen increased scrutiny over the past few years.”

“Sexual violence on college campus is a national problem, and it’s important to raise awareness about this issue,” said Roth. “At Wesleyan, we are committed to caring for survivors, vigorously pursuing perpetrators, and creating a positive campus climate in which sexual violence and misconduct have no place.”